Function MonitorEnumProc

Source/Falcor/Core/Platform/MonitorInfo.cpp:179–213

std::vector<MonitorInfo::MonitorDesc> internalDescs;

BOOL CALLBACK MonitorEnumProc(HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM dwData)
{
    MONITORINFO info;
    info.cbSize = sizeof(info);
    if (GetMonitorInfo(hMonitor, &info))
    {
        DISPLAY_DEVICE dev;
        if (!DisplayDeviceFromHMonitor(hMonitor, dev))
            return TRUE;

        std::wstring DeviceID(dev.DeviceID);
        DeviceID = DeviceID.substr(8, DeviceID.find(L'\\', 9) - 8);

        short WidthMm, HeightMm;

        GetSizeForDevID(DeviceID, WidthMm, HeightMm);

        float wInch = float(WidthMm) / 25.4f;
        float hInch = float(HeightMm) / 25.4f;

        MonitorInfo::MonitorDesc desc;
        desc.identifier = wstring_2_string(DeviceID);
        desc.resolution = uint2(std::abs(info.rcMonitor.left - info.rcMonitor.right), std::abs(info.rcMonitor.top - info.rcMonitor.bottom));

        desc.physicalSize = float2(wInch, hInch);

        auto vPpi = float2(desc.resolution) / desc.physicalSize;
        desc.ppi = (vPpi.x + vPpi.y) * 0.5f;

        desc.isPrimary = (info.dwFlags & MONITORINFOF_PRIMARY);

        internalDescs.push_back(desc);
    }
    return TRUE; // continue enumerating
}

std::vector<MonitorInfo::MonitorDesc> MonitorInfo::getMonitorDescs()
{